Answers

Best Answer: If you were born in the USA you are entitled to US citizenship. You might be entitled to Indian citizenship by descent from your parents. If you have become a naturalised Australian, you have Australian citizenship. You might be entitled to three passports, certainly two as both the USA and Australia recognise dual nationality. If you are Australian, you call yourself Australian, we do not qualify our citizenship in Australia. If you are not Australian, you call yourself American because that is where you were born.

Your nationality would be the citizenship you have, which could be American, Australian, Indian or all three if those countries allow multiple citizenship.Your ethnicity (cultural belonging and ancestry is Indian, most likely with Australian influence.I would first judge you by you accent, if you speak with an Aussie accent due to having been brought up there, I would consider you an Australian, or a Australian-Indian, who just so happen to be born in the United States.